MESON Chess Problem Database

Problem Display
PID: 247566 (8/1QB2K2/8/2p5/3k4/8/5R2/1B6 w - - 0 1)

Bantysh, Nikolai Ivanovich

Zadachi i Etyudi, 2003

8/1QB2K2/8/2p5/3k4/8/5R2/1B6

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Be5+?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kc4
        • 2.Rf4#
      • 1...Kxe5!
    • 1.Rf4+?
      • 1...Kc3
        • 2.Ba5#
      • 1...Ke3!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Ba5#
      • 1...Ke3
        • 2.Qd2#
        • 2.Qxc5#
      • 1...Kxd5!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Be5#
      • 1...Ke3
        • 2.Qxc5#
      • 1...Kd5
        • 2.Rd2#
      • 1...c4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XB(D)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT::QAB(C),XP(b)
      • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • P(b);OGATE,SBLOCK::QAB1(C)
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